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On Sunday, 21 June 2020 00:08:55 BST Wols Lists wrote: |
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> On 20/06/20 23:14, Neil Bothwick wrote: |
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> > It sounds like it may be filesystem corruption. With an SD card I'd |
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> > either reformat it, preferably in the device that will be using it, |
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> |
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> If that's possible ... :-) |
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> |
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> I now have two devices, my car radio and a tv, both of which require the |
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> vfat filesystem. New cards seem to come with exFAT. And of course |
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> neither the radio nor the tv have the option to format a card ... (and |
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> Windows has deleted the "format as vfat" option). Thank $DEITY for |
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> mkfs.vfat :-) |
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> |
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> Cheers, |
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> Wol |
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There may also be a lock switch on the card itself or an SD card adaptor, if |
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connected to the PC using an adaptor, although I expect Dale would have |
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noticed that feature and unlocked it. Sometimes the lock switch is faulty and |
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will only make contact half way through, switching back to read only at the |
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fully unlocked position - they don't make things as they used to anymore. :( |
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Let's not forget corroded electrical contacts - I've had that happen with a |
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USB stick, which accidentally fell in a cup of coffee. LOL! The coffee |
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corroded the copper, but the problem only became apparent intermittently a |
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week later. Cleaning the contacts with fine wire wool and blowing away all |
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swarf followed by a wipe with methylated spirit allowed me to access my files |
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again. |
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To eliminate PC/adaptor problems, reinsert the card in the camera device it |
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came with and delete/format it there. If it still doesn't work, RMA it under |
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warranty, or buy a new card, of a different make. Then tell us all what make/ |
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model it was, so we can all avoid it! LOL! |
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PS. exFAT has made it into the latest Linux kernels. |
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